diff --git a/external-permalinks-redux.php b/external-permalinks-redux.php
index 12bf2ef6efcaf29cdbfcb00019cd071d801d9a09..c17375c3a7e215f9c02660802c41f75dfc6ee5b0 100644
--- a/external-permalinks-redux.php
+++ b/external-permalinks-redux.php
@@ -6,6 +6,20 @@ Description: Allows users to point WordPress objects (posts, pages, custom post
 Version: 1.0.2
 Author: Erick Hitter (Oomph, Inc.)
 Author URI: http://www.thinkoomph.com/
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
 class external_permalinks_redux {
diff --git a/readme.txt b/readme.txt
index 53469102bfd602fd9a5ac2372ccfb1d7b2117bf8..15b2cba467034bfc9e206737954a7521489c9d0a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -5,6 +5,8 @@ Tags: link, redirect, external link, permalink
 Requires at least: 3.0
 Tested up to: 3.4
 Stable tag: 1.0.2
+License: GPLv2 or later
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
 Allows you to point WordPress objects (posts, pages, custom post types) to a URL of your choosing.